I'm running Leaf Spy Pro 1.1.5 en on an iPhone 6s. The LELink OBD-II (www.outdoor-apps.com) I received from Amazon yesterday will not connect with Leaf Spy. No name appears in the connection box. I see "WiFi NC", the name of my MacBook Pro and other Bluetooth LEdevices I walk by. I've never seen "OBDBLE" in the connection box.

To do this test the Leaf does not need to be on. Just the Red LED on the LELink.

1. Start the app and after a while you should see OBDBLE under "Peripherals Nearby"

2 Tap OBDBLE and it will read information from the LELink and take you to a new page

3. Scroll down to "Characteristic 1" and tap it. You should now go to a new screen where we can read and write hex data.

4. Tap the blue "Listen for Notification' label and it should change to "Stop listening". Responses from the LELink will now show up below the "Read again" label. It probably has "0x41" there right now.

5. Tap the "Write new value" label and you will go to a new screen with a hex keyboard.

6. Enter in "41545A0D0A" This is "ATZ" followed by CR & LF in hex. Before pressing "Done" watch the top of the LELink for the Green/Yellow LEDs to flash. Now press "Done" and the LEDs should flash.

7. Just under "Read again" label should be the data the LELink sent back in hex as follows:"0D0D454C4D3332372076312E350D0D3E" which is the "ELM327 v1.5" response

8. You can press the string under "Write new value" to send it again and again to watch the LEDs flash.

If this works then your LELink is good and there is something I need to fix.

Here is what the log should look like. You can see the ATZ command being echoed back. If you forgot to select "Listen for Notifications" you will not get the data back.

From "Flyct", I can see "OBDDLE" in the Setting->Bluetooth on my iPhone. However, the LeafSpy connection box did not turn green.

From "Turbo3", I installed LightBlue. I didn't have to go into the garage to see the OBDBLE peripheral.Steps 1-5 worked, but on step 6 (OK, I went into the garage for this step) I did not see green/yellow lights flash.Under "Read Again", all that appears is "0x41". Repeating step 6, no green/yellow lights and '0x41' as the response.

I have fixed a lot of connection and crash problems in v 1.1.5 when using the LELink so the next release should be much better.

Received a Viecar 4.0 OBDII Bluetooth 4.0 LE adapter today. After making a few changes the iOS version will now support it. However, when I went to test it on an Android device I found that for Android it reverts back to just a standard Bluetooth OBDII adapter requiring pairing. So to me it is not as good as the LELInk with is Bluetooth LE for both iOS and Android.

I have a Kiwi 3 on order which I hope has a lot of functions as it is very expensive. We will see.

Test version 1.1.6 is now available to all testers. Should fix LELink connection problems and crashes.

Also includes support for the dual mode Viecar 4.0 Bluetooth 4.0 OBDII adapter. It is different from the LELink which operates as a Bluetooth 4.0 LE adapter for both iOS and Android. The Viecar operates in Bluetooth 4.0 LE mode for iOS but in Bluetooth 2.0 mode when connecting to an Android device.

For LeafSpy the LELink is best as Bluetooth 4.0 LE is the easiest to connect to as there is no pairing or port number in LeafSpy to handle and it works for both iOS and Android the same.

If however you also have Android devices and Android apps that only support Bluetooth 2.0 then the Viecar would be your best option at this time.